#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "hiddevice.h"
#include <QDebug>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow),
    m_device(nullptr)
{
    ui->setupUi(this);

    // 初始化HID系统
    if (!HIDDevice::initialize()) {
        qDebug() << "HID系统初始化失败";
        return;
    }

    // 连接设备
    initDevice();

    // 连接UI信号槽（假设UI中有相应的按钮）
    connect(ui->connectButton, &QPushButton::clicked, this, &MainWindow::initDevice);
    connect(ui->writeButton, &QPushButton::clicked, this, &MainWindow::writeData);
    connect(ui->readButton, &QPushButton::clicked, this, &MainWindow::readData);
}

void MainWindow::initDevice()
{
    // 如果设备已存在，先清理
    if (m_device) {
        m_device->close();
        delete m_device;
        m_device = nullptr;
    }

    // 枚举设备 - 使用您的设备实际的VID和PID
    QList<HIDDevice::DeviceInfo> devices = HIDDevice::enumerateDevices(0x10c4, 0x8468);
    
    if (devices.isEmpty()) {
        qDebug() << "未找到HID设备";
        return;
    }

    // 创建并打开设备
    m_device = new HIDDevice();
    if (m_device->open(devices.first().path)) {
        qDebug() << "设备连接成功";
        
        // 连接数据接收信号
        connect(m_device, &HIDDevice::dataReceived, this, &MainWindow::handleReceivedData);
        // 连接错误信号
        connect(m_device, &HIDDevice::errorOccurred, this, &MainWindow::handleError);
        // 连接设备断开信号
        connect(m_device, &HIDDevice::deviceDisconnected, this, &MainWindow::handleDisconnect);
        
        ui->statusBar->showMessage("设备已连接");
    } else {
        qDebug() << "设备连接失败";
        delete m_device;
        m_device = nullptr;
        ui->statusBar->showMessage("设备连接失败");
    }
}

void MainWindow::writeData()
{
    if (!m_device || !m_device->isConnected()) {
        qDebug() << "设备未连接";
        return;
    }

    // 构造示例数据包
    unsigned char writeData[64] = {0};
    writeData[0] = 0xED;  // 报告ID
     writeData[1] = 0x03;  // 示例命令
     writeData[2] = 0x00;  // 数据长度
     writeData[3] = 0xFE;  // 数据
unsigned short crc = CRC16ByTable(writeData,4);
memcpy(writeData + 4 , &crc , 2);
    // 发送数据
    if (m_device->write(writeData,6)) {
        qDebug() << "数据发送成功:";
        this->readData();
    } else {
        qDebug() << "数据发送失败";
    }
//hid_write(m_device->device,writeData,6);
}

void MainWindow::readData()
{
    if (!m_device || !m_device->isConnected()) {
        qDebug() << "设备未连接";
        return;
    }

    // 读取数据
    unsigned char readData[64];
    if (m_device->read(readData,61)) {
        qDebug() << "读取数据成功:" ;
    } else {
        qDebug() << "读取数据失败";
    }
}

void MainWindow::handleReceivedData(const QByteArray &data)
{
    qDebug() << "收到数据:" << data.toHex();
    // 在这里处理接收到的数据
    // 可以更新UI显示或进行其他操作
}

void MainWindow::handleError(const QString &errorMessage)
{
    qDebug() << "设备错误:" << errorMessage;
    ui->statusBar->showMessage("设备错误: " + errorMessage);
}

void MainWindow::handleDisconnect()
{
    qDebug() << "设备已断开连接";
    ui->statusBar->showMessage("设备已断开连接");
    
    // 清理设备对象
    if (m_device) {
        m_device->close();
        delete m_device;
        m_device = nullptr;
    }
}

MainWindow::~MainWindow()
{
    if (m_device) {
        m_device->close();
        delete m_device;
    }
    delete ui;
    HIDDevice::exit();
}
/************************************************************************/
/* CRC16查表法                                                          */
/************************************************************************/
unsigned short MainWindow::CRC16ByTable(unsigned char* pchMsg, unsigned short wDataLen)
{
    // ---------------- POPULAR POLYNOMIALS -------------------------
    // CCITT:      x^16 + x^12 + x^5 + x^0                 (0x1021)
    // CRC-16:     x^16 + x^15 + x^2 + x^0                 (0x8005)
    // #define         CRC_16_POLYNOMIALS      0x8005
    // --------------------------------------------------------------
    //      CRC16计算方法1:使用2个256长度的校验表
    // --------------------------------------------------------------

    //	CRC 高位字节值表
    const unsigned char chCRCHTalbe[] =
    {
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
        0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
        0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
        0x00, 0xC1, 0x81, 0x40
    };

    //	CRC 低位字节值表
    const unsigned char chCRCLTalbe[] =
    {
        0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
        0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
        0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
        0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
        0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
        0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
        0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
        0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
        0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
        0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
        0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
        0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
        0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
        0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
        0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
        0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
        0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
        0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
        0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
        0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
        0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
        0x41, 0x81, 0x80, 0x40
    };

    //	高CRC字节初始化
    unsigned char chCRCHi = 0xFF;

    //	低CRC字节初始化
    unsigned char chCRCLo = 0xFF;

    //	CRC循环中的索引
    unsigned short wIndex;

    //	循环
    while (wDataLen--)
    {
        //	计算CRC
        wIndex = chCRCLo ^ *pchMsg++ ;
        chCRCLo = chCRCHi ^ chCRCHTalbe[wIndex];
        chCRCHi = chCRCLTalbe[wIndex] ;
    }
    return ((chCRCHi << 8) | chCRCLo) ;
}
